https://bugs.kde.org/show_bug.cgi?id=519936
Bug ID: 519936
Summary: PowerDevil “Standby then hibernate” description is
misleading and does not reflect systemd
suspend-then-hibernate behavior
Classification: Plasma
Product: plasmashell
Version First master
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Power management & brightness
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: 1.0
DESCRIPTION
The KDE PowerDevil power management UI provides a sleep mode option labeled
“Standby, then hibernate” with a description implying it will “switch to
hibernation when battery runs low”.
This is misleading and does not accurately describe how systemd-based
suspend-then-hibernate actually works.
In practice, on systems using systemd, this mode maps to
suspend-then-hibernate, which is triggered either by a fixed delay
(HibernateDelaySec) or systemd’s internal logic—not exclusively by low battery
conditions.
This mismatch causes confusion because:
1] The UI description suggests battery-level-based behavior ONLY
2] Actual behavior includes time-based transition to hibernation
3] Users may incorrectly assume it only activates on low battery
4] It does not clearly explain interaction with systemd-logind configuration
Additionally, PowerDevil can still override systemd lid handling behavior
depending on configuration, which makes the relationship between KDE settings
and systemd sleep modes unclear.
OBSERVED RESULT
Current description implies only battery-triggered hibernation, which does not
reflect real behavior of systemd suspend-then-hibernate.
EXPECTED RESULT
The description should accurately reflect systemd behavior, e.g.:
“Suspends the system and hibernates after a configured delay (systemd
suspend-then-hibernate)”
SOFTWARE/OS VERSIONS
Operating System (available in the Info Center app, or by running `kinfo` in a
terminal window):
KDE Plasma Version:
KDE Frameworks Version:
Qt Version:
ADDITIONAL INFORMATION
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